Hits:

Date of Publication:2010-01-01

Journal:功能材料

Issue:6

Page Number:1005-1007,1011

ISSN No.:1001-9731

Abstract:To improve the bioactivity of Ti surfaces, porous titania coating were prepared on the high-energy shot peenig treated (HESP) and commercial pure (CP) titanium by micro-arc oxidation (MAO). By OM and TEM observation, the equiaxed grain structural layer with thickness of about 40 μm and diameter of 100-200 nm formed on the HESP titanium surface. The phase identification, thickness, composition and morphology of the coating were analyzed by X-ray diffraction, Scanning electron microscope equipped with energy-dispersive X-ray spectroscopy. The amounts of Ca, P and Ca/P ratio of the MAO coating formed on the HESP-treated Ti were higher than those of CP Ti obviously. The α-Ca3(PO4)2 phase appeared in H10 MAO coating. Due to surface roughness of HESP Ti increased, the oxidation rate is different in different locations, which leads the micro-mechanical occlusion and cohesion improvement between substrate and coating.

Note:新增回溯数据